Please note
Belmadeng is an independent study platform and is not affiliated with the FIRS / Nigeria Revenue Service (NRS). This is general information, not tax or legal advice — for your situation consult a qualified tax professional. From 1 January 2026 the Federal Inland Revenue Service (FIRS) became the Nigeria Revenue Service (NRS); use only the official portals (nrs.gov.ng and taxpromax.gov.ng), and confirm current rates and rules there.
What verification confirms
TIN verification confirms that a Tax Identification Number is genuine, active and matches the taxpayer — whether it’s your own or a party you’re dealing with.
How to verify
Use the official TIN verification service (via the NRS and the Joint Tax Board portal). You typically search by the TIN or by a registered identifier (such as a NIN for individuals or an RC number for companies) to confirm validity.
Why verify
Under the new rules, a valid TIN must be quoted on invoices and contracts — if it isn’t, the payer must deduct withholding tax at the full rate and reliefs are lost. Verifying a supplier’s TIN protects you from that.
If a TIN is invalid
If your TIN doesn’t verify, it may not be activated yet — activate it with the NRS (see how to get a TIN). For a counterparty, ask them to provide a valid, active TIN before you transact.
Tips
- Verify your own TIN is active before filing.
- Check suppliers’ TINs before large payments.
- Use only official verification channels.
How to verify a TIN
TIN verification confirms that a Tax Identification Number is genuine and correctly linked to a taxpayer. It's done through the official tax authority channels (the NRS/FIRS TIN verification service), typically by entering the TIN (or the associated RC/BN number or ID) to confirm the registered name and status. Because your TIN is now tied to your CAC registration, verification also effectively confirms the business behind it. Use only the official verification service rather than third-party sites for anything sensitive.
Why verification matters
Verification comes up in several everyday situations: banks confirming a TIN before opening or maintaining a corporate account; businesses checking a supplier's or contractor's TIN before transacting or remitting withholding tax; and you confirming your own TIN is valid and correctly registered before filing or bidding for a contract. In each case the aim is the same: to be sure the number is real, active and matches the right entity, so payments, credits and filings attach to the correct taxpayer.
If a TIN comes back invalid
If a TIN doesn't verify, don't ignore it — it will cause problems at exactly the wrong moment. Common causes are a typo, a TIN not yet activated/linked for tax, or mismatched details between the TIN, the CAC record and what you entered. First re-check your input carefully; if it still fails, contact the NRS (or your State Internal Revenue Service for personal income tax) to sort the registration or activation, and make sure your name and RC/BN number are consistent across records. Resolving it promptly keeps banking, invoicing and filing moving.
Frequently asked questions
How do I verify a TIN in Nigeria?
Use the official TIN verification service (via the NRS and Joint Tax Board portal), searching by the TIN or a registered identifier such as a NIN (individuals) or RC number (companies).
Why should I verify a TIN?
Because a valid TIN must be quoted on invoices/contracts — if it isn’t, the payer must deduct full-rate withholding tax and reliefs are lost; verifying a supplier’s TIN protects you.
How do I check my own TIN is active?
Verify it on the official service; if it doesn’t show as active, activate it with the NRS.
What if a TIN is invalid?
It may not be activated yet — activate it with the NRS; for a counterparty, ask for a valid active TIN before transacting.
Is TIN verification free?
Use the official NRS/Joint Tax Board verification channels; avoid third-party sites that may charge or mishandle data.
How do I verify a TIN?
Through the official tax authority channels (the NRS/FIRS TIN verification service), typically by entering the TIN (or associated RC/BN number or ID) to confirm the registered name and status. Since your TIN is now tied to your CAC registration, verification also effectively confirms the business behind it. Use only the official service.
Why would I need to verify a TIN?
Banks confirm a TIN before opening or maintaining a corporate account; businesses check a supplier's or contractor's TIN before transacting or remitting withholding tax; and you confirm your own TIN is valid before filing or bidding for a contract. The aim is to be sure the number is real, active and matches the right entity.
What do I do if my TIN is invalid?
Re-check your input for a typo first; if it still fails, the cause is often a TIN not yet activated/linked for tax, or mismatched details between the TIN, CAC record and what you entered. Contact the NRS (or your State Internal Revenue Service for personal income tax) to sort the registration or activation.
Can I verify my own TIN?
Yes — use the official NRS/FIRS TIN verification service to confirm your TIN is valid and correctly registered before filing or bidding for a contract. It's good practice to check after registration, since a TIN that doesn't verify will stall banking and contracts.
Why won't my TIN verify?
Common causes are a typo, a TIN not yet activated/linked for tax, or mismatched details between the TIN, the CAC record and what you entered. Re-check your input, then contact the tax authority to fix the registration or activation, ensuring your name and RC/BN number are consistent.